External mounting closed electrical connector box



FIG. 1 is a front elevational view of an ornamental design for external mounting closed electrical connector box, showing my new design.

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof and;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front perspective view of my new design for external mounting closed electrical connector box.

The broken line showing throughout the drawings is included for the purpose of illustrating environmental structure only and forms no part of the claimed design. 

I claim the ornamental design for an external mounting closed electrical connector box, as shown and described. 